[texhax] Formatting \subsubsection

[Uwe Lueck]

>> Is it possible to change the \subsubsection in amsbook so that the
>> vertical space after the subsubsection be as big as desired?

> I strongly suspect the answer is no

Hasn't my suggestion showed that the answer is yes?

\ProvidesFile{amsbk.tex}[2014/06/30]
\documentclass{amsbook}
\makeatletter
%\def\section{\@startsection{section}{1}%
%  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
%  {\normalfont\bfseries\centering}}
\def\subsection{\@startsection{subsection}{2}%
  \z@{.5\linespacing\@plus.7\linespacing}{.3\linespacing}%
  {\normalfont\bfseries\centering}}
\def\subsubsection{\@startsection{subsubsection}{3}%
  \z@{.3\linespacing\@plus.5\linespacing}{.2\linespacing}%
  {\normalfont\itshape\centering}}
\makeatother
\begin{document}
\chapter{AMS}
\section{Section}
\subsection{Subsection} Subsection.
\subsubsection{Subsubsection} Subsubsection.
\end{document}

PDF outcome attached.
(Won't reach Mike, my site's mails bounce at his site.)

Best,

    Uwe.
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